I was looking for information for one of our members when I ran across this and it basicly explains why I use a reusable non bypass oil filter on my truck.

http://www.shoclub.com/lubrication-o...n-oilpart2.htm

"One common design combination known not to work is thin shell, cardboard end caps, a small amount of high efficiency filtering media and heavy viscosity cold oil."

Well, I guess we all know what filter that is LOL